content: /*
   * Copyright 2011-2016 David Karnok
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package ix;
  
  import java.util.Iterator;
  
  import org.junit.*;
  
  public class RangeTest {
  
      @Test
      public void normal() {
          Ix<Integer> source = Ix.range(1, 10);
  
          IxTestHelper.assertValues(source, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
  
          IxTestHelper.assertNoRemove(source);
      }
  
      @Test(expected = UnsupportedOperationException.class)
      public void cantRemove() {
          Iterator<Integer> it = Ix.range(1, 10).iterator();
          it.next();
          it.remove();
      }
  
      @Test
      public void empty() {
          Ix<Integer> source = Ix.range(1, 0);
  
          Assert.assertSame(Ix.empty(), source);
      }
  
      @Test
      public void just() {
          Ix<Integer> source = Ix.range(1, 1);
  
          Assert.assertTrue(source.getClass().toString(), source instanceof IxScalarCallable);
      }
  
      @Test
      public void negativeRange() {
          try {
              Ix.range(1, -99);
              Assert.fail("Should have thrown IllegalArgumentException");
          } catch (IllegalArgumentException ex) {
              Assert.assertEquals("count >= 0 required but it was -99", ex.getMessage());
          }
      }
  }
  